PUBLICATION
DNA Methylation Profiles of Tph1A and BDNF in Gut and Brain of L. Rhamnosus-Treated Zebrafish
- Authors
- Cuomo, M., Borrelli, L., Della Monica, R., Coretti, L., De Riso, G., D'Angelo Lancellotti di Durazzo, L., Fioretti, A., Lembo, F., Dinan, T.G., Cryan, J.F., Cocozza, S., Chiariotti, L.
- ID
- ZDB-PUB-210128-17
- Date
- 2021
- Source
- Biomolecules 11(2): (Journal)
- Registered Authors
- Keywords
- DNA methylation, Zebrafish, cell-to-cell heterogeneity, epialleles, methylation profiles, microbiota?gut?brain axis
- MeSH Terms
-
- Brain/metabolism
- Promoter Regions, Genetic
- Brain-Derived Neurotrophic Factor/genetics*
- Brain-Derived Neurotrophic Factor/metabolism
- Female
- PubMed
- 33499115 Full text @ Biomolecules
Abstract
The bidirectional microbiota-gut-brain axis has raised increasing interest over the past years in the context of health and disease, but there is a lack of information on molecular mechanisms underlying this connection. We hypothesized that change in microbiota composition may affect brain epigenetics leading to long-lasting effects on specific brain gene regulation. To test this hypothesis, we used Zebrafish (Danio Rerio) as a model system. As previously shown, treatment with high doses of probiotics can modulate behavior in Zebrafish, causing significant changes in the expression of some brain-relevant genes, such as BDNF and Tph1A. Using an ultra-deep targeted analysis, we investigated the methylation state of the BDNF and Tph1A promoter region in the brain and gut of probiotic-treated and untreated Zebrafishes. Thanks to the high resolution power of our analysis, we evaluated cell-to-cell methylation differences. At this resolution level, we found slight DNA methylation changes in probiotic-treated samples, likely related to a subgroup of brain and gut cells, and that specific DNA methylation signatures significantly correlated with specific behavioral scores.
Genes / Markers
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Orthology
Engineered Foreign Genes
Mapping